title: Rapid screening method for aflatoxin M1 in milk.
abstract: A rapid screening method for detecting aflatoxin M1 in milk has been developed, based on minicolumn chromatography and requiring 8-10 min for each test. The minicolumn is packed with dry Florisil (100-200 mesh) on the bottom, anhydrous Na2SO4 as the next layer, topped with neutral alumina (70-200 mesh) to which 8% water (wet basis) has been added. A blue fluorescent band at the Florisil-Na2SO4 interface indicates the presence of aflatoxin M1. The limit of detection is estimated to be about 0.2 microgram/kb. Because several items are disposable, both the time to maintain glassware and the cost per determination are reduced.
mesh_terms: D016607:Aflatoxin M1; D000348:Aflatoxins / Q000032:analysis*; D000818:Animals; D002417:Cattle; D002845:Chromatography / Q000379:methods; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002855:Chromatography, Thin Layer / Q000379:methods; D008892:Milk / Q000032:analysis*
chemical_list: D000348:Aflatoxins; D016607:Aflatoxin M1